Vazsonyi Andrew <br/><br/>
Problem solving by digital computer with pl/1 programming. 

 - New Jersey   Prentice Hall Inc.         1970 
 - 509p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>D6,9(B), L0